Biometallurgical treatment of precious metal ores having refract

Details Biometallurgical treatment of precious metal ores having refract Biometallurgical treatment of precious metal ores having refract

1992-07-02

1993-09-14

Rosenberg, Peter D.

Specialized metallurgical processes, compositions for use therei

Processes

Free metal or alloy reductant contains magnesium

423DIG17, C22B 1100

Patent

active

052444937

ABSTRACT:
A method is provided for the recovery of precious metal values, such as gold and silver, from refractory carbonaceous, or carbonaceous-sulfidic ore material. The ore material is inoculated using a specific microbial consortium and then incubated to deactivate the carbonaceous component of the material to prevent binding of the precious metal values to the carbonaceous component. The precious metal is then recovered.

REFERENCES:
patent: 5127942 (1992-07-01), Brierley

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